Nozzle.



'UNIFEM STATES NOZZLE.

Specification of Letters latent. Patqgmigad May 2li, F3018,

Application filed December 24, 191'?. Serial No. 208,692.

To all whom t may concern.'

Be it known that I, HUBERT I-I. RAMsAY, a citizen of the United States, residing at Tylertown, in the county of VValthall and State of Mississippi, have invented a new and useful Nozzle, of which the following is a specification.

My invention relates to improvements in nozzles, more especially intended in aiding artificial respiration for newly-born infants, who otherwise might terminate life prematurely, although said nozzle is susceptible of different uses; and the objects of my improvements areifirst, to aid in insuring an absolute seal between an air pump and the larynx of the infant; second, to produce a Variable supply of atmospheric air to an asphyXiated infant just born, to aid efforts at natural respiration; third, to exhaust vitiated air from the lungs; fourth, to prevent interference between the nozzle and the lungs by the tongue during the injection and exhaustion processes; and iifth, to secure these ends with structural simplicity and economy.

I attain these objects by the device shown in the accompanying drawing; wherein- Figure 1 is a side View of the nozzle; Fig. 2 is an end view thereof; Fig. 8 is a top plan view of the same; Fig. 4 is a diagrammatic view7 showing the nozzle in use; Figs. 5, 6, 7, 8 and 9 are crosswsectional views showing the areas of the nozzle on different planes.

Similar designations indicate corresponding parts throughout the views.

The entire nozzle l has perforated ears 2, whereby it is secured to the pump; whereby injections and ejections of air are made for passage therethrough to and from the lungs of an infant upon whom the device is used; the cylindrical or barrel portion 3 of the nozzle is at the rear adjacent to the air chamber of the pump. The concave curved portion l of the nozzle normally lies on the tongue while the device is in use. 'Ihe nozzle l assumes different shapes at different planes, as indicated by the cross sectional views illustrated respectively in Figs. 5, 6, 7, 8 and 9, taken on planes 5 5, 6&6, 7-7, 8-8, and 9 9. The nozzle on the plane 9-9 has a cylindrical air passage, while at the dist-al extremity there is an elliptical opening 8.

The operation of my device, apparent on inspection, is that air from an attached pump is forced downwardly through the nozzle on the down stroke of the piston, while on the up stroke thereof suction is produced on the lungs so as to withdraw vitiated air therefrom for atmospheric discharge.

The structure of the nozzle depresses the tongue whereby the glottis is raised and the introduction of air into the lungs,\and the withdrawal of air from the same, is thus facilitated. The nozzle may be applied to analogous or kindred uses without departing from the principle of my invention.

I-Iaving thus fully described my invention what I claim is:

As a new article of manufacture, the nozzle substantially as herein shown and described consisting of a structure of different diameter at the upper from the lower end, having a central curvature to meet the contour of the tongue and roof of the mouth and a tapering end for injecting pure air into, and withdrawing vitiated air from the lllungs, for the purposes herein fully set fort HUBERT I-I. RAMSAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

